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【单选题】
标定I2标准溶液的基准物是()。A.
As2O3
B.
K2Cr2O7
C.
Na2CO3
D.
H2C2O4
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反馈参考答案：
举一反三
【判断题】Marketing involves selling products and services, but that doesn’t mean marketing is limited to sales activities.()
A.
正确
B.
错误
【简答题】如图所示，l 1 ∥l 2 ，∠1=72°，则∠2=（ ）。
【单选题】Mr Carp made use of 72% of the companies dividend to finance traditional film products.
A.
Right
B.
Wrong
C.
Doesn't Say
【简答题】中国第一部电影《定军山》是戏曲艺术()片。
【单选题】(72) products often feature games with learning embedded into them。
A.
Program
B.
Database
C.
Sofrware
D.
Multimedia
【单选题】l _(72)__products often feature games with learning embedded into them.
A.
Program
B.
Database
C.
Software
D.
Multimedia
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